Centrifugal pump, blower, and the like.



PTENTED JAN. 2l, 1,908.

, N. K. F. ANSON. GBNTRIFUGAL PUMP, BLOWER, AND THE LIKE.

` APPLmATlpN FILED 0012.21, 1905.

,fluid spread on the wall 6 obtains a rapidity in tangential directionthat is equal to the rapidity of the fluid in tangential direction awayfrom the wheel, due to the small. crosssectional area of theoutletopening and, in consequence thereof, to the fact that the fluidmakes more than one revolution about the wheel. The difference or theincreased .length of way, that may seem to involve a loss of work, isoutweighed by the diminished resistance, so that theeffect,nevertheless, is

greater than in a pump or turbineof the kind hitherto employed. Onaccount of the great width of the passage the friction will also be verylittle.y l, .1

v Having now described my invention, what I claim as new and desire tosecure by Letters Patent is: i

1. In a centrifugal pump, or the like, the Combination of a case orbodyprovided with inlet and outlet assages, an impellcr or runner wheelequiistant from the sides of the case, a water space concentric withsaid wheelfandinclosing thesame, and a'spiral Water space eccentric tosaid wheel and to the 4water space concentric therewith, the i loutlet'passage from the case or body being eriphery of the wheel, andsaid case or body iiein rectangular in cross section in a piane para lelwith the axis of the impeller orl run-n ner wheel. v

. 2. In a centrifugal pump, or the like, the combination of a case orbody provided with inlet and outlet passages, an impeller or runnerwheel equi-distant lfrom the sides of Jc he case, a water spaceconcentric with said vwheel and inclosing the same, and a spiral waterspace eccentric to saidwheel and to the water space concentrictherewith, the outlet passage 'from the case or body being 'less incross sectional area than the cross sectional area of the chamber inwhich the Wheel rotates but egual to the effective cross sec-l i tionalarea o the fluid emerging from-the periphery of the wheel, the saidspiral water vvspace being also rectangular in cross section.

In witness whereof I have hereunto signed my name this 8d day ofOctober1905, in the

